Dielectric ceramic composition for use in high frequency

Details Dielectric ceramic composition for use in high frequency Dielectric ceramic composition for use in high frequency

1994-05-19

1995-04-18

Brunsman, David

Compositions: ceramic

Ceramic compositions

Titanate, zirconate, stannate, niobate, or tantalate or...

C04B 3549

Patent

active

054078768

ABSTRACT:
The present invention is a dielectric ceramic composition capable forming a dielectric resonator device provided with a high Q value at a high frequency band and keep a stable crystal phase when operated at a high power applied field. The dielectric ceramic composition which comprises a base composition expressed by the following chemical formula;

REFERENCES:
Database WPI, Week 8449, Derwent Publications Ltd. London, Great Britain, Japanese Abstract JP-A-59 190 264, Oct. 29, 1984.
Database WPI, Week 9122, Derwent Publications Ltd. London, Great Britain, Japanese Abstract JP-A-3 097 665, Apr. 23, 1993; and Patent Abstract of Japan, vol. 15, No. 282 (C-0850), Apr. 23, 1991.
S. Mhaisalkar, et al. "Microwave Dielectric Properties of Doped BaTi.sub.4 O.sub.9 ", Journal of the American Ceramics Society, vol. 74, No. 8, pp. 1894-1898, 1991.

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